Greg Ridgeway

Greg Ridgeway, born in 1973, is a professor of criminology and statistics at the University of Pennsylvania, where he chairs the Department of Criminology. He trained as a statistician, with all three of his degrees in statistics, and worked at the RAND Corporation, where he directed its Safety and Justice Program and its Center for Quality Policing. He later served for nineteen months as acting director of the National Institute of Justice before joining the University of Pennsylvania in 2014. His research applies statistical techniques to the American criminal justice system, including a 2007 study of stop-and-frisk practices in New York City that found black and Hispanic people were more likely to be frisked, searched or arrested once stopped. He is a fellow of the American Statistical Association and a co-editor-in-chief of the Journal of Quantitative Criminology.